2311425521 has 4 divisors (see below), whose sum is σ = 2311579044. Its totient is φ = 2311272000.

The previous prime is 2311425461. The next prime is 2311425533. The reversal of 2311425521 is 1255241132.

2311425521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1175735521 + 1135690000 = 34289^2 + 33700^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311425521 - 2²² = 2307231217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2311425581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51380 + ... + 85221.

It is an arithmetic number, because the mean of its divisors is an integer number (577894761).

Almost surely, 2^2311425521 is an apocalyptic number.

It is an amenable number.

2311425521 is a deficient number, since it is larger than the sum of its proper divisors (153523).

2311425521 is a wasteful number, since it uses less digits than its factorization.

2311425521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153522.

The product of its digits is 2400, while the sum is 26.

The square root of 2311425521 is about 48077.2869554845. The cubic root of 2311425521 is about 1322.1882743886.

Adding to 2311425521 its reverse (1255241132), we get a palindrome (3566666653).

The spelling of 2311425521 in words is "two billion, three hundred eleven million, four hundred twenty-five thousand, five hundred twenty-one".